A hand-held or tool integrated measurement device is provided for quickly and accurately performing non-contact measurements of dimensions and/or angles associated with various objects in a home or commercial work area. The measurement device generally includes at least one user input element, a non-contact...http://www.google.de/patents/US20010028025?utm_source=gb-gplus-sharePatent US20010028025 - Non-contact measurement device for quickly and accurately obtaining dimensional measurement data